This is a Schumacher Cougar Low Grip Conversion for the Cougar KF 2WD buggy. The parts included move the motor and the center cluster back by 21mm. The increased rear weight distribution gives the KF added rear traction and is well suited for wet astroturf or high grip dirt tracks. In the rear motor position, the car must be used with a shorty LiPo battery. The chassis can accept either motor position, so the car can be converted back to the forward motor position for better steering. The body requires a small modification to clear the spur gear, but a modified body is available from Schumacher.